CN102510127A - Method for unifying models of on-line monitored first and secondary equipment of power grid - Google Patents
Method for unifying models of on-line monitored first and secondary equipment of power grid Download PDFInfo
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- CN102510127A CN102510127A CN2011103250819A CN201110325081A CN102510127A CN 102510127 A CN102510127 A CN 102510127A CN 2011103250819 A CN2011103250819 A CN 2011103250819A CN 201110325081 A CN201110325081 A CN 201110325081A CN 102510127 A CN102510127 A CN 102510127A
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Abstract
The invention relates to a method for unifying models of on-line monitored first and secondary equipment of a power grid. The method comprises the following steps: utilizing an IEC61850 logic node LN to perform physical modeling on the on-line monitored secondary equipment: in the same device using a sensor to measure, LN embodiments are newly established for data of different measured objects; adding a uri (uniform resource identifier) attribute and a devid attribute to each LN; applying IEC68150 LN to modeling the on-line monitored secondary equipment; utilizing the LN to expand the attribute uri so as to realize the modeling related and unified with the first equipment; and utilizing the LN to expand the attribute devid so as to realize the grouping of measure points of the secondary equipment under the first equipment. According to the method, an IEC61970CIM scheduling model, an e-format measurement model and the secondary equipment (online monitoring device) are automatically introduced and spliced, so as to generate a complete once model and a measuring model. On the basis of the complete once model and the measuring model, the comprehensive information display, inquiry and historic curve display are carried out.
Description
Technical field
The present invention relates in the electrical Equipment On-Line Monitoring System integration of model and data between 61970 models of power scheduling IEC, data and on-line monitoring IEC 61850 secondary devices and integrated.
Background technology
Equipment monitoring system need insert the model and the data of different system, and carries out the integration and the unification of model and data, thereby following technological means is provided for the on-line monitoring of power equipment, state estimation, maintenance, defect management etc.:
1. real-time and historical data collection, storage, analysis, supervision, the displaying of status information of equipment, functions such as alarm, comprehensive inquiry
2. for ADVANCED APPLICATIONS functions such as equipment state assessments the data basis is provided
Real-time model and metric data that power equipment remote monitoring diagnostic center need be gathered comprise:
1). from the data of sectional center EMS system acquisition, comprise the model of this area above electric pressure of all 110kV transformer station, station primary connection figure of factory and remote measurement, remote signalling data (comprise voltage; Electric current; Active power, reactive power, circuit breaker position; But do not comprise the equipment on-line monitoring data disconnecting link position or the like).
Ground mode transfer type adopts IEC 61970 models, is mainly used in to describe electrical network primary equipment model.
The real-time measurement value of transferring at ground adopts e form measurement file mode to transmit, and uploads once in per 3 minutes.
The e form measures file: be on the abstract basis of object-oriented of IEC 61970-301 electric power system public data MODEL C IM (Common Information Model), and a kind of new and effective electric power system data SGML that is grown up to the efficient defective of CIM when describing with the XML mode.Belong to state's net electric power standard.
2). equipment on-line monitoring real-time measurement data
IEC 61850 is adopted in equipment on-line monitoring real-time measurement data modeling and communication, and the substation object model of IEC 61850 mainly divides three basic object levels, uses the substation configuration description language SCL based on XML to describe.
● transformer station model: describe the interrelated of primary equipment and their annexation;
● IED mounted cast: described model and function of substation secondary intelligent electronic device etc.;
● model of communication system: described the object model relevant with communication.
In the former power equipment monitoring remote center, IEC 61850 is used for each transformer station and upgrades online monitoring variable measured value just as secondary device model and communication model.Need transfer between IEC 61970 full models and the on-line monitoring IEC 61850 local measuring point models on ground now and set up mapping relations, thereby can each be used relevant information, uniform data to full model.Thereby the unified of the information of carrying out showed, handled and inquiry.
Because the different operating group of IEC defines the information exchange standard between the different application sets; Defined the different interface standard between the dissimilar Electric Application, be applicable to end EMS system of main website like IEC 61970 series standards, IEC 61968 is applicable to the application program of distribution automation system; And IEC 61850 has proposed a kind of public communication standard; Through a series of standardization to equipment, make its output that forms a standard, realize the seamless link of system in the transformer station.Each of these IEC standards all defines the information model of oneself separately, like IEC 61970/61968 CIM model and IEC 61850 SCL models.Therefore, even in the scope of IEC TC57 oneself,, one of imagination also needs a complicacy and mapping widely when using transparent framework.
Must progressively carry out incorporate research of secondary and building-up work for this reason; Build the whole network uniform data model and data platform, factory's station end realize uniform data collection, unified model, unified standard, with scheduling unified data Fabric Interface, and with the dispatching terminal uniform maintenance; Realize the end maintenance of source, factory station; The whole network is shared, and the main website end can generate the dispatching terminal model automatically, realizes the non-maintaining of main website.At the organic combination of dispatching terminal realization application system and function, realize resource-sharing, improve overall application level, to satisfy the modern demand of power network safety operation greatly, be that an electrical secondary system realizes that unified monitoring provides theory and technical foundation.
Summary of the invention
The object of the invention: provide the electrical network on-line monitoring once with the method for secondary device unified model; Thereby integrate 61970 grid equipment models of scheduling IEC, metric data and the IEC of transformer station 61850 secondary device monitoring device model and online monitoring data; Carry out data on this basis unified show, inquiry, and the data basis is provided for applied analysis functions such as grid equipment state early warning.
Solution of the present invention: the electrical network on-line monitoring once with the method for secondary device unified model, it is characterized in that: power equipment remote monitoring diagnostic center at first uses IEC61850 logical node (LN) that the secondary device of on-line monitoring is carried out physical modeling; Automatically import the model and the file of primary equipment secondary device then, import and generate secondary device on-line monitoring real-time measurement data; Secondary device model with on-line monitoring carries out related unified with scheduling model again.
1. use IEC 61850 logical nodes that on-Line Monitor Device (secondary device) is carried out the device that physical modeling uses transducer to measure, corresponding LN instance of data palpus of each sensor acquisition;
The data of different measured object are answered newly-built LN instance among the same IED, comprise not homophase monitoring of switch.
Each LN is increased a unified resource identifiers, URIs attribute and a DEVID attribute; Through the on-line monitoring secondary device being used IEC68150 LN modeling; Use LN extended attribute URI (unified resource description) to realize and the related and unified Modeling of primary equipment (circuit breaker Breaker, transformer PowerTransformer, bus BusbarSection), use LN extended attribute DEVID (device identification) to realize that the secondary device measuring point under the primary equipment divides into groups.
2. import the model and the file of primary equipment and secondary device automatically
(1) imports IEC 61970 CIM ground mode transfer types automatically
Power equipment remote monitoring diagnostic center computer server is connected through network with each local level control centre computer server.The file format that the local level control centre provides according to this programme; When electric network model changes in this area; Generate an XML file based on IEC61970, (calling the CIM model file in the following text), file is called " Netherlands _ cim.xml "; And reach power equipment remote monitoring diagnostic center computer server with ftp (File Transfer Protocol, FTP) in form.As shown in Figure 1:
Whether remote center's model file imports daemon cycle monitoring CIM model file changes, and startup model importing program is carried out the model importing if model file changes, checking and issue.Realize that the CIM model file imports non-maintaining flow process automatically.
It is the same with the mode that the CIM model file imports employing automatically that scheduling e form measures the automatic importing of file, no longer details.
(2) import the IEC 61850 SCD files that are used to describe electrical network primary equipment model automatically
Power equipment remote monitoring diagnostic center computer server as shown in Figure 2 is connected through integrated data network with each transformer station of the whole province; Each transformer station erection unit Monitoring Data centralised arrangement integrated data processing unit; Be responsible for concentrating all primary equipment monitoring harvester data in this transformer station, and directly be sent to remote center's front server through IEC61850 mms communication standard.
When main website and each transformer station integrated data processing unit communication, its 61850 traffic model can adopt off-line SCD file to set up or directly through the online generation of communication calling, when communication link is just logical; The SCD file of at first calling the integrated data processing unit to generate; Check its version information,, think that then substation integrated data processing unit communication model changes if version changes in version information and the main website database; Need call traffic model again; Communicate interactive database again, otherwise think that traffic model does not become, directly adopt the existing traffic model direct communication of main website.The consistency of traffic model and the non-maintaining flow process of master station communication model when having guaranteed that through this flow process main website communicates by letter with integrated data processing unit, substation IEC61850.
The beneficial effect that technical scheme of the present invention is brought: IEC 61970 CIM scheduling models, the scheduling of e form are measured model in the present invention and IEC 61850 secondary models (on-line monitoring device model) have carried out the auto-increment importing and integrated; Thereby first and second complete scheduling model data, the unified Modeling of monitoring model online data have been formed, for types of applications, overview display etc. provides the foundation.The present invention provides total solution to the secondary modeling of IEC61850 on-line monitoring equipment and with the integration of IEC 61970CIM model, for the standardization construction of equipment on-line monitoring system provides useful practice and experience.
Description of drawings
Fig. 1 is that the CIM model file is uploaded to power equipment remote monitoring diagnostic center computer server block diagram;
Fig. 2 is the block diagram of equipment on-line monitoring of the present invention system;
Fig. 3 is the related of on-line monitoring IEC 61850 measuring point models and a model of CIM 61970 scheduling, forms a unified model and measures the model sketch map;
Fig. 4 is IEC 61850 data models;
Fig. 5 is that the primary equipment object unique identifier obj:ID of IEC 61970 ground mode transfer types is complementary;
Fig. 6 is 4 monitoring of equipment device type codings;
Fig. 7 is to use LN extended attribute devid to realize the secondary device measuring point grouping sketch map under the primary equipment.
Embodiment
Below in conjunction with accompanying drawing and embodiment to further explain of the present invention.
1. IEC61970 CIM scheduling model, E form measurement file and on-line monitoring IEC 61850 SCD files import automatically
The E form measures file and upgraded once in 3 three minutes, and CIM scheduling model and 61850SCD file have renewal just to be uploaded to remote center, belongs to not timing and upgrades.Whether these files of the monitoring that remote center need not stop change, and import incremental update automatically if monitor the background program that changes.
2. CIM scheduling model, E form measure file and the modeling of IEC 61850SCD file consolidation, automatically splicing
Accomplish the related of on-line monitoring IEC 61850 measuring point models and a model of CIM 61970 scheduling, form a unified model and measure model.Sketch map such as Fig. 3:
3. synthetic display, inquiry
On the station figure of primary connection factory, carrying out the unified of the station figure of factory, e measurement file and online monitoring data shows:
1) showing mode transfer type measuring value in real time, on-Line Monitor Device communication state, the measuring value of on-Line Monitor Device on each station figure of factory.
2) various inquiries, curve displaying etc. can be carried out, each parameter result of secondary on-line testing can be shown on the screen.
2, use IEC 61850 LN logical nodes that on-Line Monitor Device (secondary device) is carried out physical modeling: the device that uses transducer to measure, corresponding LN instance of data palpus of each sensor acquisition; The data of different measured object are answered newly-built LN instance among the same IED, comprise not homophase monitoring of switch.
In Guangdong Province's monitoring of equipment remote center project, eight types of on-line monitoring secondary devices have been carried out IEC 61850 modelings:
. transformer monitoring SPTR
. insulating monitoring SINS
. monitoring and diagnosis SPDC is put in office
. circuit breaker SCBR
. lightning arrester SLAR
. environmental monitoring SENV
. insulating gas monitoring SIMG
. iknsulating liquid monitoring SIML
Putting monitoring with typical office is example, and its IEC 61850 data models are shown in Figure 4:
Explain: 1) secondary on-line monitoring equipment is carried out IEC 61850 standardization modelings through LN (logical node)
2) through DO (device object) secondary on-line monitoring equipment measuring point is carried out the standardization modeling
3) on-line monitoring IEC 61580 secondary device models and IEC 61970 CIM scheduling model unified Modeling technology
Each LN is increased a unified resource identifiers, URIs attribute and a DEVID attribute, and URI and DEVID extension rule are following:
The unification of expansion name space is ext in a, the SCL file;
The element of expanding in b, the SCL file is: uri and devid;
The electrical network primary equipment that c, uri attribute description on-line monitoring equipment are monitored is with the position encoded description of 25 bit functions;
D, devid describe online monitoring equipment POF, describe with 21 on-line monitoring codings.
Example:
LN desc=" female 100 switching gas that join of 110kV are kept watch on " inst=" 1 " lnClass=" SIMG " lnType=" SIMG " ext:uri=" 0306B120001250EAG10BAC002 " ext:devid=" 0312B12000042A3840001 "
Explain:
1) uri: be 25 bit function positions of primary equipment, be complementary, see Fig. 5 with the primary equipment object unique identifier obj:ID of IEC 61970 ground mode transfer types:
In the present technique scheme, we carry out related with three types of primary equipment CIM objects:
.cim:Breaker (circuit breaker)
.cim:PowerTransformer (transformer)
.cim:BusbarSection (bus)
2) coding of devid:21 position on-line monitoring secondary device is the unique identification of on-line monitoring equipment, and on-line monitoring equipment is formed as follows:
4 Equipment Serial Numbers of 13 factory's station POF 4 monitoring equipment type codings of coding
① ② ?③
1. 13 factory's station POF are encoded: make land used mode transfer type 13 bit functions position encoded (standing to factory)
2. 4 monitoring of equipment device types are encoded, and stipulate like Fig. 6:
3. 4 Equipment Serial Numbers: represent on-Line Monitor Device equipment sequence code
4 monitoring equipment type codings have added 4 the Equipment Serial Number unique identifications on-line monitoring equipment in the station.
Through the on-line monitoring secondary device being used IEC68150 LN modeling; Use LN extended attribute uri to realize and the related and unified Modeling of primary equipment (Breaker, PowerTransformer, BusbarSection), use LN extended attribute devid to realize that the secondary device measuring point under the primary equipment divides into groups.As shown in Figure 7.Explain:
Station, 500kV Pengcheng, Shenzhen #3 main transformer has four on-Line Monitor Device, and wherein A2982001's is branch producer in the Henan, and other three A2982206, A2982207, A2982208 are Shenzhen special fast producers difficult to understand.A2982001 has 14 remote signalling amounts, and A2982206, A2982207, A2982208 have 3 remote signalling amounts respectively.
Make up through the unified of an above secondary model and measuring point, on Pengcheng factory station figure picture, show the monitoring information of each equipment.
Claims (6)
- The electrical network on-line monitoring once with the method for secondary device unified model; It is characterized in that: power equipment remote monitoring diagnostic center at first uses IEC61850 logical node LN that the secondary device of on-line monitoring is carried out physical modeling: the device that uses transducer to measure; Corresponding LN instance of data palpus of each sensor acquisition, the data of different measured object are answered newly-built LN instance in the same device; Then each LN is increased a unified resource identifier uri attribute and a devid attribute, the uri attribute description on-line monitoring equipment electrical network primary equipment of being monitored wherein, devid describes online monitoring equipment POF; Through the on-line monitoring secondary device being used IEC68150 LN modeling, use LN extended attribute uri to realize and the related and unified Modeling of primary equipment again, use LN extended attribute devid to realize that the secondary device measuring point under the primary equipment divides into groups.
- 2. electrical network on-line monitoring as claimed in claim 1 once with the method for secondary device unified model; It is characterized in that: accomplish the IEC61850 logical node secondary device of on-line monitoring is carried out after physical modeling and each LN increase a unified resource identifier uri attribute and devid attribute, import the model and the file of primary equipment and secondary device automatically; Import and generate secondary device on-line monitoring real-time measurement data; Secondary device model with on-line monitoring carries out related unified with scheduling model again.
- According to claim 1 or claim 2 the electrical network on-line monitoring once with the method for secondary device unified model; It is characterized in that: power equipment remote monitoring diagnostic center computer server is connected through network with each local level control centre computer server; When electric network model changes in this area in the local level control centre; Generate an XML file, and reach power equipment remote monitoring diagnostic center computer server in form with ftp based on IEC61970.
- 4. electrical network on-line monitoring as claimed in claim 2 once with the method for secondary device unified model; It is characterized in that: the metric data of importing is that the E form measures file; Regularly upgrade; The SCD file of CIM scheduling model and IEC 61850 has renewal just to be uploaded to remote center, belongs to not timing and upgrades; Whether these files of the monitoring that remote center need not stop change, and import incremental update automatically if monitor the background program that changes.
- As claim 1 or 2 or 4 described electrical network on-line monitorings once with the method for secondary device unified model; It is characterized in that: power equipment remote monitoring diagnostic center computer server is connected through integrated data network with each transformer station; Each transformer station erection unit Monitoring Data centralised arrangement integrated data processing unit; Be responsible for concentrating all primary equipment monitoring harvester data in this transformer station, and directly be sent to remote center's front server through IEC61850 mms communication standard; When main website and each transformer station integrated data processing unit communication, its 61850 traffic model can adopt off-line scd file to set up or directly through the online generation of communication calling, when communication link is just logical; The scd file of at first calling the integrated data processing unit to generate; Check its version information,, think that then substation integrated data processing unit communication model changes if version changes in version information and the main website database; Need call traffic model again; Communicate interactive database again, otherwise think that traffic model does not become, directly adopt the existing traffic model direct communication of main website.
- 6. electrical network on-line monitoring as claimed in claim 1 once with the method for secondary device unified model; It is characterized in that: accomplish once with the secondary device model after reunification, on the station figure of primary connection factory, carry out the station figure of factory, e measures the unified of file and online monitoring data and shows.
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